জব প্রিপারেশন

1751 Math

If x=2 , then the value of

A)1211

B)1231

C)1321

D)1233

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1752 Math

A bond gets matured in 10 years . invested TK. 42,000 in this bond and received Tk. 105000 once the bond matured . If the bond was under simple interest . then what was the rate of interest per annum?

A)10%

B)12.50%

C)15%

D)7.50%

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1753 Math

A boy goes to school at a speed of 5 km/h and returns to the village at a speed of 4 km/hr. If he takes 4 hours and 30 minutes in all, what is the distance between the village and the school?

A)7 km

B)10 km

C)4 km

D)5 km

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1754 Math

The average height of girls in a class is 5 ft and that of boys is 5.7 ft. If the average height of the students in class is 5.5 ft, what could be the possible strength of boys and girls respectively in the class.

A)50, 20

B)30, 20

C)20, 30

D)60, 50

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1755 Math

The value of "A" varies in inverse proportion as the square of "B". If the value of "A" is equal to 40 , when "B" is equal to 12. What would be the value of "A" when "B" is equal to 24?

A)15

B)20

C)10

D)22

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1756 Math

The average age of the 20 aspirants of a class is 19.2 years. After some time two more aspirants join them and then average is increased by 0.3 years. Find the difference between the age of new aspirants .

A)12

B)15

C)18

D)None of these

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1757 Math

A cistern is normally filled with eater in 10 hours but takes 5 hours longer to fill because of a leak in its bottom . If the cistern is full, the leak will empty the cistern in -

A)20 hours

B)30 hours

C)40 hours

D)50 hours.

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1758 Math

P and Q start a hotel . P left after 6 months. After the year ends, P gets Tk. 6000 as profit out of total profit of TK. 9000. What will be amount invested by Q if P had invested TK. 20000?

A)TK. 5000

B)TK. 6000

C)TK. 8000

D)Tk. 7000

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1759 Math

A and B go cycling in the same direction with speeds of 6 km /hr and 12 km/hr. A car from behind passes them in 9 and 10 seconds respectively . What is the speeds of the car?

A)22 km/hr

B)33 km/hr

C)66 km/hr

D)44 km/hr

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1760 Math

The ratio of the present age of father to that of son is 7 : 2 after 10 years their ages will be in the ratio of 9 : 4 . The present ages of the father is

A)35 years

B)40 years

C)30 years

D)25 years

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1761 Math

There are 3 green , 4 orange and 5 white color bulbs in a bag. If a bulb is picked at random, what is probability of having either a green or a white bulb?

A)3-Feb

B)4-Mar

C)3-Apr

D)5-Feb

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1762 Math

The ratio of Pens and Pencils in a shop is 3 : 2 respectively . The average number of Pens and Pencils is 180. What is the number of Pencils in the shop?

A)444

B)244

C)344

D)144

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1763 Math

P, Q, and R start a business. P invests 3 times as much as Q invests and Q invests 2/3 rd as much as R invests . Find the ratio of capitals of P, Q and R?

A)3:02:06

B)6:02:03

C)2:06:03

D)5:02:03

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1764 Math

How many iron rods, each of length 7 m and diameter 2 cm can be made out of 0.88 of iron?

A)400

B)200

C)300

D)100

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1765 Math

A is three as old as B. C was twice -as old as A four years ago. In four years time, A will be 31. What are the present ages of B and C?

A)45, 10

B)9,50

C)10,50

D)50,15

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1766 Math

A)13.41

B)20.46

C)21.66

D)22.35

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1767 Math

What will be simple interest for 1 year and 4 months on a sum of Tk. 25800 at the rate of 14% per annum?

A)Tk. 4816

B)TK. 2580

C)TK. 4815

D)None of these

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1768 Math

An error 2% in excess is made white measuring the side of a square. The percentage of error in the calculated area of the square is:

A)2.00%

B)4.04%

C)2.02%

D)4.00%

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1769 Math

A man took loan from a bank at the rate o f 12% p.a simple interest . After 3 years he had to pay Tk. 5400 interest only for the period. The principal amount borrowed by him was:

A)TK. 20,000

B)TK. 10,000

C)Tk. 2000

D)TK. 15,000

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1770 Math

A boat covers a certain distance downstream in 1 hour, while it comes back in 1.5 hour. If the speed of the stream be 3 km/hr. What is the speed of the boat in still water?

A)12 km /hr

B)15 km/hr

C)13 km/hr

D)14 km/hr

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1771 Math

Tk. 385 has been divided among A , B,C in such a way that A receive 2/9th of What B and C together receive . Then A's share is?

A)TK. 77

B)TK. 82.50

C)TK. 70

D)TK. 85

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1772 Math

Mother's age today is thrice as her daughter's . After 10 years it would be just double. How old is the daughter today?

A)10 years

B)9 years

C)8 years

D)11 years

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1773 Math

A boat can travel with a speed of 13 km /hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream .

A)3 hours

B)5 hours

C)6 hours

D)4 hours

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1774 Math

In what time will the simple interest on Tk. 400 at 10% per annum be the same as the simple interest on TK. 1000 4 years at 4% per annum?

A)3 years

B)4 years

C)5 years

D)6 years

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1775 Math

A student multiplied a number by 3/5 instead of 5/3 , What is the percentage error in the calculation?

A)50%

B)54%

C)60%

D)64%

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1776 Math

A car covers four successive 7 km distance at speeds of 10 km/hr, 20 km/hr, 30 km/hr and 60 km/hr , respectively . Its average speed over this distance is :

A)40 km/hr

B)30 km /hr

C)20 km/hr

D)50 km/hr

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1777 Math

The total age of A and B is 12 years more than the total age of B and C .C is how many years younger than A?

A)12 years

B)13 years

C)14 years

D)15 years

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1778 Math

The ratio of quantity of water in fresh fruit to that of dry fruits is 7 : 2 . If 400 km of dry fruits contain 50 km of water then find the weight of the water in same fruits when they were fresh?

A)100 km

B)150 km

C)175 kg

D)125 kg

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1779 Math

What would be the measure of the diagonal of a square shore area is equal to 578

A)34 cm

B)38 cm

C)32 cm

D)42 cm

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1780 Math

The cost price of a table and a chair together is TK. 690. If the table costs 30% more than the chair, then find the cost price of the table and the chair respectively.

A)TK. 300 and Tk. 390

B)TK. 390 and TK. 300

C)TK. 480 and TK. 210

D)Tk. 400 and TK. 290

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1781 Math

A)13

B)13.5

C)12

D)None of these

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1782 Math

In the question two equations numbered I and II are given . You have to solve both the equations and given answer.

A)x

B)x

C)

D)

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1783 Math

A dishonest milkman professes to sell his milk at cost price but he mixes it with water and there by gains 25% . The percentage of water in the mixture is:

A)8%

B)10%

C)20%

D)15%

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1784 Math

In still water, a boat can travel at 5 km/hr. It takes 1 hour to row to a place and come back If the velocity of the stream is 1 km/hr, how far is the place?

A)2.4 km

B)3.5 km

C)2.6 km

D)None of these

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1785 Math

Two men P and Q Start from a place walking at 5 km /hr and 6.5 km/hr, respectively . What is the time they will take to be 92 km apart , they walk in opposite directions?

A)2 hr

B)4 hr

C)6 hr

D)8 hr

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1786 Math

Two men, A and B, run a 4 km race in a circular course of 1/4 km. If their speeds are in the ratio of 5 : 4 , how often does the winner pass the other?

A)Thrice

B)Four times

C)Once

D)Twice

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1787 Math

A sum of money amounts to Tk. 6690 after 3 years and to TK. 10035 after 6 years on compound interest . Find the sum.

A)TK. 4360

B)TK. 4560

C)TK. 4660

D)TK. 4460

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1788 Math

Once card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card (Jack,Queen and King only)?

A)13-Jan

B)13-Mar

C)Mar-52

D)Sep-52

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1789 Math

If two times of the daughter's age in years is included to the mother's age, the total is 70 and if two times of the mother's age is included to the daughter's age the total is 95. So the Mother's age is -

A)38

B)30

C)40

D)41

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1790 Math

A student multiplied a number by 3/5 instead of 5.3. What is the percentage error in the calculation?

A)64%

B)74%

C)84%

D)54%

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1791 Math

Ten years ago, A was half of B in age. If the ratio of their present ages is 3 :4 then what will be the total of their present ages?

A)30 years

B)35 years

C)40 years

D)45 years

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1792 Math

The size of the wooden block is cm. How many such blocks will be required to contract a solid wooden cube of minimum size?

A)12

B)6

C)10

D)8

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1793 Math

A tank is 25 m long, 12 m wide and 6 m deep. The cost of plastering its walls and bottom at 75 paisa per is -

A)TK. 456

B)TK. 458

C)TK. 558

D)TK. 568

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1794 Math

The difference of two numbers is 20% of the larger number, If the smaller number is 20, then the larger number is -

A)25

B)20

C)10

D)30

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1795 Math

12 buckets of water fill a tank when the capacity of each tank is 13.5 liters. How many buckets will be needed to fill the same tank ,the capacity of each buckets is 9 liters?

A)8

B)18

C)16

D)4

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1796 Math

The sum of three numbers is 98 . If the ratio of the first to second is 2 :3 and that of the second to the third is 5 :8 , then the second number is -

A)10

B)20

C)40

D)30

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1797 Math

If K : 1 = 4: 3 and l :m = 5 : 3 , then find K : l : m?

A)20:15:09

B)18:14:11

C)9:15:01

D)21:07:03

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1798 Math

The value of

A)6

B)2

C)4

D)8

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1799 Math

A 270 m long train running at the speed of 120 km /hr crosses another train running in opposite direction at the speed of 80 km/hr in 9 seconds. What is the length of the other train?

A)230 m

B)240 m

C)260 m

D)320 m

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1800 Math

Three partners shared the profit in a business in the ratio 5 : 7 : 8 . They had partnered for 14 months, 8 months and 7 months respectively . What was the ratio of their investment ?

A)10:14:16

B)25:18:32

C)38:28:21

D)0.868101852

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